Browsing is a valuable way to learn about birds, however it is a brute force approach and not designed for identification.
A more sophisticated approach to finding a bird with specific field marks is to use the Step by Step Search.
You can also try the Wizard to find a bird, which uses a question and answer approach, but again it does not give you the flexibility of the Step by Step Search.

Grasshopper Sparrow: Medium sparrow with brown-streaked upperparts and white underparts. Face, flanks, and breast are plain buff-brown. Head is flat with central white stripe though dark crown. Upper mandible is gray, while lower mandible is yellow. Pink legs and feet. Named for its insectlike song.

Gadwall: This large dabbling duck has a finely barred gray body, black rump and under tail coverts, a white belly, and rust-brown shoulders. It has a gray-brown head and neck and gray bill. The wings have a black-bordered white speculum visible in flight. The legs and feet are yellow. It mostly feeds on submerged aquatic vegetation. It has a fast direct flight.

Green-winged Teal: This small dabbling duck has pale, gray-barred sides and a buff breast with a white bar down the side. The head is chestnut-brown with a green ear patch, the bill is dark gray, and the legs and feet are olive-gray. The speculum is flashy green bordered with brown above and white below. Diet includes seeds, insects and grasses. Flight is often low and erratic.

Golden-crowned Kinglet: Very small, warbler-like bird, olive-green to gray upperparts and pale breast. Head has bright orange crown patch bordered with yellow and black, white eyebrows and black bill. Tail is short and wings have two bars. Female similar but lacks orange in the yellow crown. Weak fluttering flight on shallow wing beats.

Great Egret: This large white heron has yellow eyes and a bill that is also yellow but appears orange when breeding, black legs and feet, and long feather plumes that extend from the back to beyond the tail during breeding season. Feeds on fish, frogs, insects, snakes and crayfish. It has a buoyant direct flight on steady wing beats. Sexes are similar in appearance, but males are slightly larger.

Golden Eagle: Large raptor with dark brown body and golden-brown feathers on back of head and nape. Eyes and bill are dark. Cere is yellow. Legs are completely feathered. Feet are yellow. Alternates deep slow wing beats with glides, soars on thermals. Has been clocked in a steep glide at 120 mph.

Great Blue Heron: This large heron has a blue-gray back, black sides and a gray-and-white striped belly. The long neck is gray with a black-bordered white throat stripe. The head has a white face, cap and black crest. The upper mandible is dark and the lower is yellow. It mainly feeds on small fish but will take a variety of foods. It has a direct flight on steady wing beats. Sexes are similar.

Green Heron: This small heron has gray-green upperparts, chestnut brown head, neck, and upper breast, and a paler brown belly. It has a green-black cap with a small crest and a white throat. The neck has a white central stripe. The bill is two-toned with a dark upper mandible and yellow lower. During the breeding season bill is black. It is an opportunistic feeder with fish as the primary food source. Direct flight. Sexes are similar.

Greater Yellowlegs: This large sandpiper has mottled brown, gray and white upperparts. The underparts are white with dark streaks and spots. The bill is slightly upturned and the legs are long and yellow. Its long barred tail and white rump are conspicuous in flight. It feeds on insects, insect larvae and small fish. It has a swift direct flight, sometimes at great heights. Sexes are similar.

Golden-winged Warbler: Small warbler with gray upperparts and white underparts. Face is white with black mask and throat, and head has a yellow crown. Wings are gray with large yellow patches. Its flight is weak and fluttering, alternates rapid wing beats with periods of wings drawn to its sides.

Glaucous Gull: This large white gull has a pale gray back and yellow eyes. The bill is yellow with a red spot on the lower mandible. The wings are white-edged and white tipped; the legs and feet are pink. It is an active predator of seabird nesting colonies. Diet includes fish, insects and birds. It has slow steady wing beats and soars on thermals and updrafts. The sexes are similar.